Project Description

The N42 magnets, made of rare earth material PrNd, is one of many NdFeB magnet grades. Among all the magnet inquiries that we received, magnets N42 series is the most.

I am interested in buying neodymium square magnet.

12.5×12.5x 2.5mm, Neodymium rare earth magnet, N42 grade.

I would like pricing for 1000 and 10000 magnets.

n42 magnets

Do You Know Why So Many Customers Choose Neodymium Magnets N42 Series?

Here are several reasons.

Firstly, N42 series are the perfect balance between cost, strength, and performance. It falls in the middle range of the low-to-high magnet grades and offers the best cost-effective solution. Interestingly, in some cases, N42 magnets may even be stronger than N52, especially when the magnet shape is thin.

Additionally, the N42 has better temperature resistance than the N50, N52 and N55, which have a maximum operating temperature of 80°C, compared to 60°C for the N50, N52 and N55. Alternatively, if more temperature resistance is required, we can choose N42SH, which has an operating temperature of 300 degrees Fahrenheit (150 degrees Celsius) and is stronger and cheaper than other types of high temperature magnets, such as SmCo, AlniCo and ceramic magnets. It is suitable for use in a wide range of high temperature industrial applications.

Moreover, N42 is an ideal choice for beginners who are starting a new project that requires neodymium magnets. It is difficult to find the right magnet grade immediately among many properties. As you have to work through a variety of magnets to find a balance between size and pull strength. But grade N42 is a good start to have sample test easily.

Furthermore, N42 is widely available and frequently sold in online shops. Customers can easily find a wide range of N42 magnet sizes and shapes, such as blocks, discs, rings, or countersunk magnets, to suit their needs. However, it is worth noting that custom-shaped magnets, such as arc-shaped magnets, need to be specially produced by magnet manufacturers.

Lastly, N42 magnets offer great flexibility as they can provide the same strength as an N50 magnet by using a slightly larger N42 magnet or the same strength as an N38 magnet by using a slightly smaller N42 magnet. However, for those seeking the highest strength in the smallest possible size at room temperature, N52 or N55 is the strongest option available.

In conclusion, N42 neodymium magnets are a fantastic choice due to their cost-effectiveness, durability, availability, ease of use, and flexibility. When choosing a magnet grade for a specific application, N42 is an excellent starting point that provides reliable and consistent performance.

What Is the Difference Between N42 And N52 Magnets (Is N52 Strong Than N42)?

As the highest grade of neodymium magnet, N52 magnet is stronger and expensive than N42 magnet. But the N42 grade offers high performance at an economical price. Grades above N42 are often more expensive, and the increase in price may not be proportional to the improvement in performance. An example is the N52 grade, which is 20% stronger than the N42 grade, but its price can be twice as high.

N42 vs N52 Magnet – The specific magnetic properties differ as follows:

GradeRemanenceCoercive ForceIntrinsic Coercive ForceMax. EnergyMax Working Temp.
abbrBrHcBHcJ(BH) maxTw.
UnitmT (KGs) KA/m (KOe) KA/m (KOe)KJ/m3 (MGOe)°C
N421280-1320 (12.8-13.2)≧923 (≧11.6)≧955 (≧12)318-342 (40-43)≤80
N521430-1480 (14.3-14.8)≧876 (≧11.0)≧876 (≧11)394-414 (49.5-52)≤60

How Much Weight Can a N42 Magnet Hold (How Strong Is an N42 Neodymium Magnet)?

The n42 magnet pull strength depends on neodymium magnet sizes, the plating and how it is used. The magnet with Ni-Cu-Ni coating will have a much higher pull force than a magnet with plastic coating.

For n42 and n52 magnet strength under different sizes, we can refer to the theoretical data from The Original K&J Magnet Calculator.

n52 vs n42 magnet block
disc magnet n42 vs n52

What Are the Best Uses for N42 Neodymium Magnets?

Neodymium magnet N42 is an ideal DIY Parts & Options. It can be used as magnetic mount, closure, connector, holder and stand etc. helping you for the development of new inventions and making your life easier. Therefore, you can find permanent magnets on many novel products in Kickstarter.

High temperature neodymium magnets are usually used on industrial devices, such as separators and motors with temperature requirements.

What Does Magnet N42H Mean for a Magnet?

Grade N42H refers to a specific type of neodymium magnet strength rating. The “N” in the grade stands for neodymium, while the number following it refers to the strongest point of the material’s B-H curve, or its maximum energy product in MegaGauss-Oersteds (MGOe).

So for grade N42H, the maximum energy product of the magnet is 42 MGOe, which makes it a high-performance magnet with strong magnetic force. The “H” in the grade refers to the magnet’s high resistance to temperature, which can operate up to 120 degrees Celsius.

Heat Resistant Magnets N42SH & N42UH

As known, neodymium magnets (N42) demonstrate operational stability up to 80 ◦C. This temperature can be higher for other N42 series (N42M, N42H, N42SH & N42UH) rare-earth magnets. For example, the temperature stability of N42SH reaches 150 ℃, N42UH reaches 180℃. Therefore, grades N42SH & N42UH are usually used for high temperature applications, such as brushless electric motors.

You can find specifications of N42 series Neodymium Magnets as below or for full grade table, please visit Sintered Neodymium Magnet Characteristic.

GradeRemanenceCoercive ForceIntrinsic Coercive ForceMax. EnergyMax Working Temp.
abbrBrHcBHcJ(BH) maxTw.
UnitmT (KGs) KA/m (KOe) KA/m (KOe)KJ/m3 (MGOe)°C
N421280-1320 (12.8-13.2)≧923 (≧11.6)≧955 (≧12)318-342 (40-43)≤80
N42M1280-1320 (12.8-13.2)≧955 (≧12.0)≧1114 (≧14)318-342 (40-43)≤100
N42H1280-1320 (12.8-13.2)≧955 (≧12.0)≧1353 (≧17)318-342 (40-43)≤120
N42SH1280-1320 (12.8-13.2)≧995 (≧12.5)≧1592 (≧ 20)318-342 (40-43)≤150
N42UH1290-1330 (12.9-13.3)≧907 (≧11.4)≧1990 (≧25)318-326 (40-42)≤180

Neodymium Magnet Manufacturer – Wholesale N42 Series Magnets

China Magnets Source has been producing cost effective N42 magnet products for our global partners for decades. Our highly skilled staffs have extensive experience in providing solutions to your any need of neodymium magnet. We are always happy to help you with any queries you may have for magnet.

If you are looking for a new manufacturer of N42 series neodymium magnets, kindly contact us by below form.

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